Fits both sides for front axle seals. The tool is designed for flush mount. According to the RM, this is within spec for both sides. From the factory, however, I believe the RH side typically sticks out 1mm. I am not sure if the seal bottoms out.
The fit has been tested on seals that were already installed.
Tools are 3d printed with PETG and have a one-year warranty.
*Note on print quality: I am using PETG with a high layer height instead of PLA, which most 3d prints are made from. This yields stronger prints that can handle higher temperatures. However, layer lines are visible, and the prints are prone to cosmetic imperfections.